lyoniside and lupeol

To investigate the chemical constituents from the stems and branches of Sorbaria arborea.. The chemical constituents were isolated and purified by silica gel column chromatography, Sephadex LH-20 column chromatography and recrystallization. Their structures were identified by physicochemical properties and spectra analysis.. Ten compounds were isolated and identified as ursolic acid (1), cucurbitacin F (2), (-) -epicatechin (3), daucosterol (4), arbutin (5), 3-O-β-anthemisol (6), 2,6-dimethoxy-p-hydroquinone-4-O-β-D-glucopyranoside (7), lupeol (8), betulin (9) and lup-20 (29) -en-3β, 30-diol (10).. All the compounds are isolated from this plant for the first time, and compounds 1, 6 - 8 and 10 are obtained from Sorbaria genus for the first time.

Topics: Arbutin; Catechin; Chromatography; Drugs, Chinese Herbal; Pentacyclic Triterpenes; Phytochemicals; Plant Stems; Plants, Medicinal; Rosaceae; Sitosterols; Triterpenes; Ursolic Acid

To study the chemical constituents from the aerial part of Aconitum brachypodum.. The constituents were isolated and purified by silica gel, activated alumina and Sephadex LH-20 column chromatography. their structures were elucidated on the basis of spectral data and physiochemical evidence.. Eleven compounds were isolated from 80% ethanol extract and identified as secokaraconitine (1), brachyaconitines A (2), C (3), talatisamine (4), hypaconitine (5), songrine (6), bullatine A (7), 7-carbony sitosterone (8), lupeol (9), β-sitosterol (10) and daucosterol (11).. All compounds are isolated from the aerial part of Aconitum brachypodum for the first time.

Topics: Aconitum; Dextrans; Pentacyclic Triterpenes; Plant Components, Aerial; Sitosterols

To study the chemical constituents of the aerial part of Stauntonia obovatifoliola.. The chemical constituents of ethyl acetate fraction were isolated and purified by several chromatography. Their structures were elucidated by their physiochemical properties and spectral methods.. Six known compounds were isolated and identified as lupeone(1), lupeol(2), stigmasterol(3),3beta-O-acetyloleanolic acid(4), resinone(5) and daucosterol(6).. Compounds 1-6 are isolated from this plant for the first time.

Topics: Acetates; Gas Chromatography-Mass Spectrometry; Molecular Structure; Pentacyclic Triterpenes; Plant Components, Aerial; Rosaceae; Sitosterols; Stigmasterol; Triterpenes

One novel compound was isolated from the hexane extract of Choisya ternata Kunth. leaves, choisyaternatine (1), together with the known compounds tecleamaniensine A (2), lup-20(29)-en-3β-ol (lupeol) (3), lup-20(29)-en-3β,24-diol (4), β-sitosterol glucoside (5), and skimmianine (6), plus the following known compounds from the dichloromethane extract, choisyine (7) and 6-methoxy-7,8-methylenedioxycoumarin (8). Compounds 2-5 are reported for the first time in this species. The structures of isolated compounds were elucidated by extensive spectroscopic analyses and comparison with previously reported spectroscopic data. The structure of choisyaternatine was further confirmed based on X-ray data analysis.

Topics: Alkaloids; Crystallography, X-Ray; Glucosides; Molecular Structure; Pentacyclic Triterpenes; Plant Extracts; Plant Leaves; Quinolines; Rutaceae; Sitosterols

To study the chemical constituents of the Ficus microcarpa.. Isolation and identification were carried out by using various chromatography techniques and spectral methods.. Eight compounds were isolated. Their structures were identified as beta-amyrone (I), lupeol (II), lupeol acetate (III), maslinic acid (IV), epifriedelinol (V), stearic acid (VI), beta-sitosterol (VI), daucosterol (VI).. Compounds I, II, VI are isolated from this plant for the first time.

Topics: Ficus; Magnetic Resonance Spectroscopy; Molecular Structure; Pentacyclic Triterpenes; Plant Leaves; Sitosterols; Stearic Acids; Triterpenes

To study the chemical constituents from the petroleum ether fraction of Buxus microphylla.. The petroleum ether fraction of Buxus microphylla was isolated and identified by silica gel column chromatography. And the anticancer activity of different chemical constituents was measured by MTT reduction test.. Eight compounds were isolated and identified as lupeol (1), butulin (3), beta-sitosterol (4), stigmasterol (5), dibutyl phthalate (6), 3beta, 30-dihydroxy-lup-20 (29) ene (7), daucosterol (8). Compound 7 inhibited KB cells' proliferation in a dose-dependent manner.. Compounds 2 - 5, 7, 8 are isolated from this genus for the first time. Compound 7 has certainly anticancer effects.

Topics: Buxus; Chromatography, Thin Layer; Dibutyl Phthalate; Ethers; Magnetic Resonance Spectroscopy; Molecular Structure; Pentacyclic Triterpenes; Plants, Medicinal; Sitosterols; Stigmasterol

To study the chemical constituents from Ampelopsis humulifolia var. heterophylla (Thunb.) K. Koch.. Chromatography and spectroscopic analysis were employed to isolate and elucidate the chemical constituents in the plant.. Six compounds were isolated and elucidated as lupeol, beta-stiosterol, daucosterol, ethyl gallate, gallic acid and catechin.. The six compounds were isolated from this plant for the first time.

Topics: Ampelopsis; Catechin; Gallic Acid; Pentacyclic Triterpenes; Plant Roots; Plants, Medicinal; Sitosterols; Triterpenes

To study chemical constituents of Ilex kudingcha.. The constituents were isolated by chromatographic method and the structures were identified on the basis of spectral analysis.. Seven compounds, lupeol(I); 3 beta-hydroxyl-lup-20(29)-ene-24-methyl ester(II); lup-20(29)-ene-3 beta-, 24-diol(III); beta-sitosterol(IV); ursolic acid(V); daucosterol (VI); mannitol were obtained(VII).. I, III, VI and VII compounds were obtained from genus Ilex for the first time.

Topics: Ilex; Mannitol; Pentacyclic Triterpenes; Plant Leaves; Plants, Medicinal; Sitosterols; Triterpenes

To study the chemical constituents from Salvia roborowskii Maxim.. Chromatography and spectroscopic analysis were employed to isolate and elucidate the chemical constituents in the plant.. Six compounds were isolated and elucidated as lupeol (I), 11 beta-hydroxy-lupeol(II),3 beta-acetyl-11 beta-hydroxy-lupeol(III), ursolic acid (IV), beta-sitosterol(V), daucosterol (VI).. I approximately VI were isolated from this plant for the first time.

Topics: Chromatography, Thin Layer; Molecular Structure; Pentacyclic Triterpenes; Plants, Medicinal; Salvia; Sitosterols; Triterpenes; Ursolic Acid

Six compounds were isolated from the roots of Ampelopsis sinica and identified as lupeol, beta-sitosterol, daucosterol, catechin, sucrose and palmitic acid on the basis of spectroscopic. Lupeol is found in Ampelopsis genus for the rirst time.

Topics: Catechin; Coumarins; Drugs, Chinese Herbal; Pentacyclic Triterpenes; Plant Roots; Plants, Medicinal; Sitosterols; Triterpenes